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109441831 = 181604651
BaseRepresentation
bin1101000010111…
…11001100100111
321121221012222011
412201133030213
5211004114311
614505415051
72466145252
oct641371447
9247835864
10109441831
11568602a4
123079a487
131989b2a5
141076c099
15991c321
hex685f327

109441831 has 4 divisors (see below), whose sum is σ = 110046664. Its totient is φ = 108837000.

The previous prime is 109441823. The next prime is 109441859. The reversal of 109441831 is 138144901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109441831 - 23 = 109441823 is a prime.

It is a super-2 number, since 2×1094418312 = 23955028745265122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109441793 and 109441802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109441531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302145 + ... + 302506.

It is an arithmetic number, because the mean of its divisors is an integer number (27511666).

Almost surely, 2109441831 is an apocalyptic number.

109441831 is a deficient number, since it is larger than the sum of its proper divisors (604833).

109441831 is an equidigital number, since it uses as much as digits as its factorization.

109441831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604832.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 109441831 is about 10461.4449766751. Note that the first 3 decimals coincide. The cubic root of 109441831 is about 478.3301801306.

The spelling of 109441831 in words is "one hundred nine million, four hundred forty-one thousand, eight hundred thirty-one".

Divisors: 1 181 604651 109441831